If you need to accomplish adjustments on your own Keeway ARN 150 then it will always be a good plan to have access to a Workshop Manual to keep just for reference in the event that you want to know how to remove a certain component for example Brake Pads and fit it again correctly.
Keeway ARN 150 Workshop Manuals will provide you with certain diagnostic guides for the car so if something is not working it helps you understand what the issue is and tips on how to make it better. After that you can evaluate if this can be achieved by yourself or in case the job is simply too big you can actually book your ARN 150 in with a nearby garage.
Keeway ARN 150 manual